FMvastuvõtjad

FMvastuvõtjad refers to FM receivers, devices designed to detect and process radio waves in the Frequency Modulation (FM) band. These receivers are essential for tuning into FM radio broadcasts, which are commonly used for music, news, and talk radio due to their generally higher audio quality compared to Amplitude Modulation (AM) broadcasts.

The core functionality of an FM receiver involves several stages. First, an antenna captures the radio waves. A tuner then selects the desired frequency, typically within the 88 to 108 MHz range in most parts of the world. This selected signal is then amplified. A key component is the demodulator, which separates the audio signal from the FM carrier wave by detecting changes in the wave's frequency. Finally, the audio signal is amplified again and sent to a speaker or output device.

Modern FM receivers can be found in a wide variety of forms, from standalone radios to integrated circuits within smartphones, car radios, and portable music players. They vary in complexity, with basic models offering simple tuning and volume control, while more advanced receivers may include digital tuning, presets, stereo reception capabilities, and even digital signal processing for improved sound quality and noise reduction. The sensitivity and selectivity of an FM receiver are crucial factors determining its performance, influencing how well it can pick up weak signals and distinguish between adjacent broadcast frequencies.